My 2BHK upgrade plan: Unitech Amber ka future kya hai?

Unitech UGCC Amber — looking at this for an investor upgrade. I'm currently in a 2BHK in Sector 78. Iska resale potential kaisa hai for a 3BHK? Completed project hai, toh rental yield kitni expect kar sakte hain? What's the capital appreciation outlook over 5 years, given the builder's past? Secondary market mein liquidity kaisi hai?